Process of manufacturing embossing-plates.



HENRY PERCY THOMPSON, 0F GROVE CRESCENT, KINGSTON-UPON-THAMES, ENGLAND.

PROCESS GF MANUFACTURING EMBOSSING-PLATES.

No Drawing.

Specification of Letters Patent.

Application filed June 11, 1912.

Patented Feb. 10,1914.

Serial No. 702,052.

To all whom it may concern:

Be it known that I, HENRY PERCY THOMPSON, subject of the King of Great Britain, residing at Grove House, Grove Crescent, Kingston-upon-Thames, England, have invented certain new and useful Improvements in and Relating to the Process of Manufacturing Embossing-Plates, of which the following is a specification.

This invention for improvements in and relating to the treatment of printed and lithographed pictures has for its object the treatment of a colored (or plain) printed or lithographed picture or other matter so that it will resemble an oil painting or show the printed matter with the same preciseness or definiteness as an oil painting and consists in embossing the paper on which the matter is printed so that the result would be precisely the same as the surface of an oil painting.

In order to obtain the necessary block for embossing the picture or other matter the print or lithograph which is first made transparent is fixed face downward on the front of a glass or other transparent sheet, rigid or otherwise, and the back of the print is covered with wax, to the thickness of say of an inch or more. This may be done by immersing the glass sheet and print in a bath of paraffin ceresin, spermaceti .wax, or like material, the wax is by preference then removed from the back of the glass sheet. By letting light fall on the back of the glass the reverse of the picture can be clearly seen through the wax, and by means of suitable instruments such as Wire or bristle brushes or other tools, suitable brush marks are made on the wax, or such portions of the wax are scraped away as may be required to obtain the varying degrees of relief in the final print and to produce the necessary characteristics of an oil painting.

Various suggestions have already been made for imitating oil paintings by impressing marks upon pictures produced upon flat surfaces by lithographic and other methods of print-ing but in all such cases the marks so produced have been obtained by a plate prepared from an orlginal matrix upon which the lines or other marks have been placed in relief.

It has been found that artlstic imitations or reproductions of original paintings cannot be obtained by any process which involves (as all such processes have hitherto involved) the imitation of the lines of the original picture by lines or marks added in relief and in my invention. as opposed to all such processes the artistic work of reproducing or imitating the original brush and other marks is carried out by removing material from a layer of wax or similar material as hereinbefore described.

In order to carry out this invention the print or lithographed picture to be treated is first made transparent in any known man.- ner, and is fastened face downward on to a sheet of glass or other transparent material and then preferably dipped into a bath of melted wax or other suitable material, properly heated, whereby a coating of the wax of any desired thickness can be obtained by continual clippings from to J th of an inch thick. The .wax is preferably removed from the face of the glass opposite the picture so that the lines of it may be easily distinguished, and upon a proper light being used behind the glass the picture in reverse is seen through the wax with all the light and shades. By means of suitable wire or bristle brushes the wax is then scraped and wiped awaynotadded to obtain the undulathms and thickness which give the various degrees of relief when bearing artistically clear and stream like marks on the surface. Where the canvas in the original picture is shown the imprint on the wax can be obtained by pressing a piece of canvas into the wax surface. The matrix thus obtained is then treated in the commonly known manner and by electrolysis, copper or other n'iaterial is deposited upon the wax, making an electro with which the print may be embossed from the back, or a reverse electro can be prepared in ways well known in the art and this reverse electro used to emboss the print from the front.

What I claim and desire to secure by Letters Patent isz- 1. The process of manufacturing embossing plates which consists in securing a picture face downward on a sheet of transparent material coating the hack of the picture with wax, removing certain portions of said wax by brushing and preparing an electrotype from the matrix thus formed.

The process of manufacturing embossing plates which consists in securing the print face downward on a sheet of glass, dipping the glass into a bath of molten Wax and thereby coating the glass and picture, In testimony whereof I have afiixed my removing iglhe Wax from the face of the glass signature, in presence of two Witnesses. opposite t e picture, removing certain p0rtions of the Wax 011 the back of the picture HENRY PERCY THOMPSON with brushes, pressing a piece of canvas Vitnesses:

into the Wax surface, and making an elec- R. WVESTAOOTT,

trotype from the matrix thus formed. ROBERT BELL.

coplel of this patent may be obtained for five cents each, by addressing the Commissioner of Eatents, Washington, D. G. 

